Changes to Start recording the room mix to a WAV file

added the new required request property filename

added the new required request property gcs_bucket

added the new required request property gcs_object_name_prefix

added the new gcs enum value to the request property storage

the request property multi_channel with a default value became required

added the new optional request property multi_channel

the request property s3_access_key became required

the request property s3_bucket became required

the request property s3_endpoint became required

the request property s3_prefix became required

the request property s3_region became required

the request property s3_secret_key became required

the request property storage became required

removed the required property file from the response with the 200 status

the request property s3_access_key became optional

the request property s3_bucket became optional

the request property s3_endpoint became optional

the request property s3_prefix became optional

the request property s3_region became optional

the request property s3_secret_key became optional

the request property storage became optional

added the required property file to the response with the 200 status

the request property s3_access_key became required

the request property s3_bucket became required

the request property s3_endpoint became required

the request property s3_prefix became required

the request property s3_region became required

the request property s3_secret_key became required

the request property storage became required

removed the required property file from the response with the 200 status